大型底栖动物体长体重关系和生化组成的研究  

On the relationships between body-length and body-weight and the biochemical composition of macrozoobenthos

作　　者：闫云君[1] 梁彦龄[2] 

机构地区：[1]华中科技大学生命科学与技术学院 [2]中国科学院水生生物研究所

出　　处：《华中科技大学学报（自然科学版）》2002年第11期114-116,共3页Journal of Huazhong University of Science and Technology(Natural Science Edition)

基　　金：国家自然科学基金资助项目 (394 30 10 1和 396 0 0 0 19) ;湖北省自然科学基金资助项目 (2 0 0 0J10 9)

摘　　要：求出了 17种常见底栖动物的体长、体重 (干、湿 )关系 .一般情况下 ,b值略小于 3.0 .测定了 16种经济底栖动物的生化组分 ,蛋白质质量分数超过 5 0 %的有 14种 ,其中背摇蚊的最高 ,为 71.7% ;脂类质量分数超过 2 0 %的有 6种 ,其中苏氏尾鳃蚓、单孔蚓的最高 ,为 33.36 % ;灰分质量分数超过 10 %的有 10种 ,其中克氏螯虾和溪蟹一种分别达到 39.3%和 5 8.9% ;碳水化合物的质量分数一般低于 10 % .The relationship between body (shell) length and body weight (dry or wet) of 17 species of macrozoobenthos are studied. The results show that the regressions of different species differ significantly from one another and most of the values of b deviate from 3.0. The biochemical composition of 16 species of economic macrozoobenthos have been analyzed. The contents of protein of oligochaetes, molluses, crayfishes (Decapoda) and other insects are 47?%～65?%, 48?%～71?%, 27?%～70?% and 56?%～71?%, respectively. The contents of fat of oligochaetes, molluses, crayfishes and other insects are 29?%～33?%, 9.7?%～ 15.2?%, 6.0?%～19.7?% and 14?%～27?%. The ash content of oligochaetes, molluses, crayfishes and other insects are 6.2?%～7.0?%, 10.0?%～24.0?%, 15.7?%～58.9?% and 8.2?%～17.8?%, respectively. The contents of carbohydrate of these species are below 10?%, and only those species with chitin exoskeleton and a few pregnant individuals of B. aeruginosa have a content higher than 10?%.

关 键 词：底栖动物 体长 体重 生化组成 水体生态系统 蛋白质 脂类 质量分数 

分 类 号：Q958.8[生物学—动物学]